Pet Peeve of the Day

I see more and more people bringing large rolling suitcase-type briefcases to work each day. What are people taking to and from work each day that is so heavy that they need rollers? I take a laptop home sometimes but its not nearly heavy enough to justify a rolling suitcase to carry it in. These "roller-cases" are bulky and sometimes loud and the people that drag them behind them are often getting them in the way of others. Maybe I'll have to start asking people what they are carrying.